STRONG AND DURABLE : The Heavy Duty Siren Alarm Padlock has a body made of extra strong cast steel, high-grade steel shackle. Resistant corrosion, bad weather, physical destroy & Waterproof
UNIQUE DESIGN : This innovative U lock comes equipped with two settings, armed and unarmed, so you can be alerted by a 105 - 110 db alarm when the lock is tampered with. Basically, double the protection
HIGH SECURITY: The lock has a built in security system that activates the alarm if anyone tries to put something foreign into the lock for example - a wrong key
BATTERY REPLACEMENT : To replace the batteries remove the 2 screws in the shackle holes. Remove cover and replace the batteries. Be sure to pay attention to polarity and that cover goes on same way it came off